Qotho Minerals (QM)  is a leading provider of proficiency testing services to mineral laboratories and a producer of certified reference materials for mineral laboratories and geologists worldwide. We help laboratories assess and improve their testing performance by providing high-quality samples, data analysis, and expert consultation whilst also producing fit-for-purpose, stable, and homogeneous reference materials for various testing disciplines.

Qotho Minerals was established in January 2013 and was originally known as Qotho Laboratory Services before its name change in 2020. From humble beginnings in a domestic garage, QM’s growth saw it move to a mini-factory in Kya Sands within two years from inception and to a larger factory based on a smallholding in Broederstroom – about 50km west of Johannesburg and Pretoria, in South Africa, in 2019.

Who We Are

As a leading provider in the field, we bring together a team of experts with extensive experience in mining, metallurgy, statistics and quality assurance. Our multidisciplinary team is passionate about advancing the industry by delivering solutions that support the proficiency and reliability of laboratory testing processes.

hannelie de beer

Dr Hannelie de Beer
(Managing Director)

Dr. de Beer has a long history in the minerals sector, dating back to 1986, when she received her bachelor’s degree in analytical chemistry. Her enthusiasm and passion for chemistry has pushed her to become one of the industry’s most influential leaders. Her strategic thinking and interpersonal skills were essential to QM’s success.

Takudzwa Tsapayi
(Operations Manager)

Takudzwa Tsapayi, dubbed “the numbers man,” has revolutionised QM’s ability to make informed decisions with data. His background in actuarial and financial mathematics is critical in managing and optimising the company’s day-to-day operations. His multifaceted personality, along with his drive to continuous improvement, has allowed QM to thrive.

takudzwa tsapayi
Suzell Louw - Quality Manager

Suzell Louw
(Quality Manager)

Suzell Louw has vast experience in a variety of industries, with a primary focus on analytical chemistry. Her extensive knowledge and meticulous attention to detail have significantly increased QM’s ability to satisfy defined standards and client expectations. Her ability to accomplish things correctly the first time allows the rest of the team to do the same.

Our Mission

Creating value for our stakeholders by channelling resources to provide matrix-matched certified reference materials and proficiency testing programs, which contributes to improving the minerals industry.

Our Commitment to Quality

Quality is at the heart of everything we do. We adhere to rigorous quality control processes throughout the production of our certified reference materials and the implementation of our proficiency testing programs. This commitment to quality assurance ensures that our clients receive reliable and consistent results, enabling them to make informed decisions based on trustworthy data.

Our Commitment to Environmental Accountability

At Qotho Minerals, we recognise the importance of environmental responsibility in all aspects of our operations. We are dedicated to minimising our ecological footprint by implementing sustainable practices, from sourcing raw materials to the production and distribution of our proficiency testing programs and certified reference materials. Through continuous improvement, we aim to contribute to a greener, more sustainable future for the mining and metals industry.

Upholding Integrity in Every Endeavour

Integrity is the cornerstone of our business philosophy. We conduct ourselves with the highest ethical standards, fostering trust and transparency in all our interactions. Our commitment to integrity extends beyond our products and services; it defines the way we engage with clients, partners, and the communities we serve. At Qotho Minerals, we believe that maintaining honesty and integrity is paramount to building enduring relationships.

Embracing Equality and Diversity

We are proud to champion equality and diversity within our organization and throughout the mining and metals industry. Qotho Minerals values the unique perspectives and contributions of every individual. We foster an inclusive workplace that celebrates diversity, ensuring that our team represents a broad spectrum of backgrounds, experiences, and talents. By embracing equality, we strengthen our ability to innovate and deliver solutions that resonate with the global community.

Pioneering Innovation for Progress

Innovation is at the heart of Qotho Minerals’ commitment to progress. We continuously invest in research and development to stay at the forefront of technological advancements in laboratory testing for the mining and metals sector. By fostering a culture of innovation, we empower laboratories to overcome challenges, adapt to evolving industry requirements, and achieve new heights of accuracy and efficiency in their testing processes.

Our commitment goes beyond providing proficiency testing programs and certified reference materials. We aspire to leave a positive and lasting impact on the industry and the world. By integrating our commitment to quality, environmental accountability, upholding integrity, embracing equality, and fostering innovation, we are building a legacy that reflects our dedication to creating a sustainable, equitable, and forward-thinking future for laboratories in the mining and metals sector.


We have expanded our capacity and international presence, currently servicing over 230 laboratories in Africa and various International countries. Our international client base includes operations in Australia, Finland, Netherlands, China, Germany, Mexico, Peru, Philippines, India, Malaysia, Italy, Canada, Turkey, Brazil, USA, UK, DRC, Botswana, Namibia, Tanzania, Gabon, Zimbabwe, Zambia, Kenya, Mozambique, in addition to our well-established client base in South Africa.

Join us in our journey towards a brighter, more responsible future – where accuracy, integrity, and innovation converge to shape the next era of excellence in laboratory testing.